 | |||||||||||
 |  | ||||||||||
 | |||||||||||
| Potassium Metabisulfite Properties: White granules or powder, pungent sharp odor, d 2.3, decomposes at 150-190C, oxidizes in air and moisture to sulfate soluble in water, insoluble in alcohol. (potassium pyrosulfite) K2 S2 O5 CAS: 16731-55-8 Derivation: By heating potassium bisulfite until it loses water. Grade: Technical, reagent, FCC. Use: Antiseptic, reagent, source of sulfurous acid brewing (cleaning casks and vats), wine-making (said to kill only undesirable yeasts and bacteria), food preservative, developing agent (photography), process engraving and lithography, dyeing, antioxidant, bleaching agent. THIS PRODUCT COMPLIES IN FULL WITH THE FCC SPECIFICATIONS | ||||||||||
